Grandstream GSC3506 V2 30W SIP Multicast Paging Speaker

Grandstream GSC3506 V2 Ceiling Mountable Speaker - 30 W RMS

The Grandstream GSC3506 V2 Multicast Paging Speaker delivers clear, powerful audio for paging and public address applications in offices, schools, hospitals, apartments, hospitality environments, and other commercial spaces. Its 30-watt high-fidelity speaker and HD acoustic chamber provide intelligible voice reproduction for announcements, notifications, and emergency communications.

Designed for flexible networked communication, the GSC3506 V2 supports SIP paging, multicast paging, group paging, push-to-talk, call waiting with priority override, and configurable blocklists and allowlists. Full-band and wide-band audio codec support, including Opus and G.722, helps provide detailed audio across a frequency range of 110 Hz to 20 kHz. With 95 dB sensitivity and support for up to 30 watts RMS power, this speaker delivers efficient, dependable output.

The Grandstream GSC3506 V2 includes a 10/100 Mbps Ethernet port with PoE, PoE+, and PoE++ support for convenient network connectivity and simplified installation. Additional interfaces include a differential line-out port, switch-in input, alarm input, 24V DC input, and USB port. Volume controls and a reset key provide accessible local operation, while the ceiling-mountable design supports clean integration into professional environments.

The package includes the multicast paging speaker, a mounting hole cut-out template, ceiling mount kit, and quick installation guide. With its network-based architecture, strong audio performance, and broad integration capabilities, the Grandstream GSC3506 V2 is a practical solution for centralized paging and security communications.

Features:

• 30-watt high-fidelity speaker with an HD acoustic chamber for clear paging and public address audio
• Supports SIP paging, multicast paging, group paging, push-to-talk, and call waiting with priority override
• Includes blocklist and allowlist support for managing unwanted calls
• Supports Opus, G.722, and other full-band and wide-band audio codecs
• Provides a 110 Hz to 20 kHz frequency range and 95 dB sensitivity
• Handles up to 30 watts RMS power for strong, efficient audio output
• Includes a 10/100 Mbps Ethernet port with PoE, PoE+, and PoE++ support
• Offers differential line-out, switch-in, alarm input, 24V DC, network, and USB connectivity
• Ceiling-mountable design supports streamlined installation in commercial environments
• Includes volume up, volume down, and reset controls